Crafted for model airplane enthusiasts, these propellers are essential for building and maintaining your aircraft models. The fold-resistant design ensures they withstand rigorous use, making them suitable for both beginners and experienced hobbyists. These accessories are practical for enhancing your model airplane's performance and reliability during flight. Features - Color: Red -Material:Plastic - Size: 12.50X3.00X2.00cm/4.91X1.18X0.79in -Enhanced flight dynamics: these foldresistant propellers are engineered to optimize aerodynamics, delivering improved maneuverability and for model airplanes -Easy assembly for beginners: the diy design ensures simple and simple assembly, making it a choice for students and hobbyists of all skill levels -Durable construction: made with sturdy materials, these propellers resist wear and tear, ensuring longterm performance for repeated use in educational or recreational projects -Practical for : tailored for stem activities, this kit helps students explore engineering concepts while developing problemsolving and teamwork skills -Wide application range: compatible with a variety of model airplane types, this set is ideal for creating custom designs or upgrading existing models Package list: 50 x (hole diameter 6x4mm) 50 x